If you multiply a number with only 1s by itself, you end up with a palindrome of the numbers in ascending and then descending order. People have called this an example of the “beauty of mathematics.” If your number has N digits of 1, then its square will be the numbers 1 to N in ascending and then descending order. The pattern continues indefinitely, although it “breaks” after 9 because of carry over. I explain why the pattern happens using the method of multiplying by lines.
Multiply by lines: https://www.youtube.com/watch?v=0SZw8jpfAk0
Blog post (text summary): http://wp.me/p6aMk-4pp
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Here’s a listing of all my books
Here’s a more detailed description of each book…
“The Joy of Game Theory” shows how you can use math to out-think your competition. (rated 4/5 stars on 21 reviews) http://amzn.to/1uQvA20
“Math Puzzles Volume 1” features classic brain teasers and riddles with complete solutions for problems in counting, geometry, probability, and game theory. Volume 1 is rated 4.6/5 stars on 9 reviews. http://amzn.to/1GhUUSH
“Math Puzzles Volume 2” is a sequel book with more great problems. http://amzn.to/1NKbyCs
“Math Puzzles Volume 3” is the third in the series. http://amzn.to/1NKbGlp
“40 Paradoxes in Logic, Probability, and Game Theory” contains thought-provoking and counter-intuitive results. (rated 4.9/5 stars on 7 reviews) http://amzn.to/1LOCI4U
“The Best Mental Math Tricks” teaches how you can look like a math genius by solving problems in your head http://amzn.to/18maAdo
“Multiply Numbers By Drawing Lines” This book is a reference guide for my video that has over 1 million views on a geometric method to multiply numbers. http://amzn.to/XRm7M4